Another good bloomberg article.

http://www.bloomberg.com/news/articles/2015-04-14/gates-pritzkers-take-on-musk-in-5-billion-race-for-new-battery

Billionaires want to invest in the "sexiness" of batteries and technologies. Can't blame them, that's where all the glory is :). I don't think building a graphite mine is "sexy", but being environmentally responsible is...hope ZEN can convince a few billionaires they will be "cheap, easy, ....and clean". lol